英语语法分析

expectorate

vt. 咳出痰；吐唾液；咯血

vi. 咳出痰等；吐唾液；咯血

第三人称单数 expectorates

现在分词 expectorating

过去式 expectorated

过去分词 expectorated

例句

Do not expectorate on the sidewalks.

不要在人行道上吐痰。

He began to expectorate small amounts of blood streaked sputum.

他开始有少量带血丝的痰。

He began to expectorate small amounts of blood-streaked sputum.

他开始有少量带血丝的痰。